describeMismatchSafe(String string, Description mismatchDescription) { mismatchDescription.appendText("was empty"); } }; This is a variant of CustomMatcher that first type checks the argument being matched. By the time TypeSafeMatcher.matchesSafely(T) is is called the argument is guaranteed to be non-null and of the correct type. Author: Neil Dunn Constructor Summary CustomTypeSafeMatche(java.lang.String description) Method Summary void describeTo(Description description) Generates a description of the object....